CVE-2026-39962
MISP is an open source threat intelligence and sharing platform. Prior to 2.5.36, improper neutralization of special elements in an LDAP query in ApacheAuthenticate.php allows LDAP injection via an unsanitized username value when ApacheAuthenticate.apacheEnv is configured to use a user-controlled server variable instead of REMOTE_USER (such as in certain proxy setups). An attacker able to control that value can manipulate the LDAP search filter and potentially bypass authentication constraints or cause unauthorized LDAP queries. This vulnerability is fixed in 2.5.36.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.8
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/SA:H
- EPSS probability
- 0.34%
- CWE
- CWE-90
- Published
- 2026-04-09
- Last modified
- 2026-04-10
Affected products
- MISP MISP
Weakness type
Related vulnerabilities
- CVE-2026-80055 — Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to...
- CVE-2026-78579 — Improper Input Sanitization in Okta Access Gateway LDAP Datastore Filter Interpolation
- CVE-2026-81205 — LDAP / Active Directory Integration - Moderately critical - Information Disclosure - SA-CONTRIB-2026-115
- CVE-2026-75020 — Apache APISIX: ldap-auth plugin cross-subtree identity impersonation
- CVE-2026-19271 — Blind LDAP Injection in Sign-In Endpoint in TÜBİTAK BİLGEM's Liderahenk
- CVE-2026-76373 — Filter Injection through Action Parameters in AD LDAP app for Splunk SOAR
- CVE-2026-19930 — Dolibarr User Cloning card.php ldap injection
- CVE-2026-74241 — Quay: ldap referral filter injection in quay external ldap authentication